DS28E22Q+T

The DS28E22Q+T is a highly secure, 1-Wire EEPROM device designed by Maxim Integrated. It provides robust data protection and authentication features, making it suitable for applications requiring data integrity and security, such as medical devices, peripherals, and consumables. The device operates on a unique 1-Wire interface, which allows communication and power over a single data line, simplifying connectivity and reducing wiring complexity.
Key features include 2Kb of EEPROM organized in 32-byte pages, each with user-programmable protection modes. The DS28E22Q+T supports SHA-256 authentication, ensuring secure validation of data and device identity. It features both hardware and software protection mechanisms, including a unique 64-bit ROM ID, which is factory-lasered to ensure each device's uniqueness.
The device's compact TDFN package and low power consumption make it ideal for space-constrained and battery-powered applications. Additionally, the DS28E22Q+T provides high ESD protection and operates over an extended temperature range, enhancing reliability in various environments. Overall, it is a versatile solution for secure data storage and authentication.

The DS28E22Q+T is a 1-Wire EEPROM with 2Kb memory and security features. Equivalent products might include:
1. Maxim Integrated DS28E05: Also a 1-Wire EEPROM with security features but smaller memory.
2. Maxim Integrated DS28E17: A 1-Wire-to-I2C master bridge with similar security features.
3. Maxim Integrated DS28C36: Offers more advanced security features with 1-Wire communication.
Ensure compatibility with your specific requirements when selecting an alternative.

The DS28E22Q+T is a secure authenticator with the following features:
1. 1-Wire Interface: Utilizes Maxim Integrated's 1-Wire communication protocol, allowing for simple, single-pin data exchange and power management.
2. EEPROM Memory: Includes 2KB of secure EEPROM for user data storage, with specific sections protected by authentication.
3. SHA-256 Security: Employs a SHA-256 secure hash algorithm for robust cryptographic operations, ensuring secure authentication and data integrity.
4. Unique 64-bit ROM ID: Each device has a unique, factory-lasered 64-bit registration number, aiding in device authentication and identification.
5. Secure Key Storage: Provides secure storage for cryptographic keys, preventing unauthorized access and cloning.
6. Anti-Tamper Features: Built-in mechanisms to protect against various tampering and reverse-engineering attempts.
7. Bus Master Compatibility: Interoperable with standard 1-Wire bus masters, enhancing flexibility and ease of integration.
8. Operating Range: Typically operates within a wide voltage range, enhancing versatility for various applications.
These features make the DS28E22Q+T suitable for applications requiring secure access control, authenticated data exchange, and protection against counterfeiting.

The DS28E22Q+T is a 1-Wire EEPROM device designed for secure data storage. It has an 8-pin configuration. The primary functions of the DS28E22Q+T include secure authentication and data storage, featuring 2Kb of EEPROM memory that can be organized into 32-byte pages.
The pin configuration typically consists of:
1. Ground (GND) - Provides the reference voltage for the device.
2. Data Input/Output (DQ) - Serves as the 1-Wire data communication line.
3. Power Supply (VCC) - Connects to the power source, though some variations might be parasitically powered.
4-8. Additional pins may include features such as programming, additional data lines, or might just be unused, depending on the specific packaging and variant.
These devices are commonly used in applications requiring secure data transmission and storage, such as authentication tokens, secure memory modules, and accessory identification.

The DS28E22Q+T is manufactured by Maxim Integrated, which is now part of Analog Devices, Inc. Analog Devices is a multinational semiconductor company that designs and manufactures a wide range of analog, mixed-signal, and digital signal processing integrated circuits used in electronic equipment. The company serves various industries, including automotive, communication, consumer electronics, healthcare, and industrial applications. Their product portfolio includes amplifiers, data converters, sensors, and power management solutions, among others.

The DS28E22Q+T is a 1-Wire secure authenticator IC used primarily for authentication and data security. Its applications include secure authentication of peripherals, accessories, and consumables in various devices, such as medical equipment, consumer electronics, and industrial systems. It is also used for preventing counterfeit products and ensuring secure supply chain management. By providing a cost-effective solution for secure data storage and mutual authentication, it helps protect sensitive data and validate genuine products, ensuring system integrity and safety.

The DS28E22Q+T is packaged in a TDFN (Thin Dual Flat No-lead) package. This type of package is compact and typically features a low profile, making it suitable for applications requiring minimal space.